Mill-roll lubricator.



W. RITTBERGER.

MILL ROLL LUBRICATOR.

APPLICATION FILED SEPT-29. 1914- 1,1 50,885. Patented Aug. 24, 1915.

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l 7 [5 /6 51mm wfli/iweryeg W. RITTBERGER.

MILL ROLL LUBRICATOR.

APPLICATION FILED SEPT.29. x914.

1,150,885. Patented Au 24, 1915.

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WILLIAM RITTBERGER, 0F GRANITE CITY, ILLINOIS.

MILL-ROLL LUBRICATOE.

Specification of Letters Patent. Patented Aug. 24, 1915,

Application filed September 29, 1914. Serial No; 864,149.

To all whom it may concern Be it known that I, 'WILLIAM RITTBERGER, acitizen of the United States, residing at Granite City, in the county ofMadison and State of Illinois, have invented new and useful Improvementsin Mill-Roll Lubricators, of which the following is a specification.

This invention is an improved lubricating apparatus for use inlubricating the rolls of an iron rolling mill.

The invention consists in the construction, combination and arrangementof devices hereinafter described and claimed.

In the accompanying drawings :-Figure 1 is a side elevation of an ironroller mill provided with a lubricator constructed in accordance with myinvention. Fig. 2 is a detail vertical longitudinal sectional view ofone of the lubricant reservoirs. Fig. 3 is a vertical sectional view ofthe same on the plane indicated by the line 33 of Fig. 2. Fig. 4 ispartly a plan and partly a horizontal sectional view of one of thelubricating boxes. Fig. 5 is a vertical sectional View of the same. Fig.6 is a detail sectional view of a member of one of the steam jacketpipes. Fig. 7 is a similar view of the telescoping oint in said pipe.Fig. 8 is a transverse sectional view of the same on the plane indicatedby the line 88 of Fig. 7

For the purposes of this specification one of the standards of a rollingmill is shown at 1. and the rollers at 2. In accordance with myinvention I provide a tank or reservoir 3 for the reception and heatingof the lubricant. Under the bottom of this reservoir is a casting 4.- tothe under side of which nipples 5 are attached, the nipples serving forthe attachment of steam jacket and lubricant conveying pipes 6. A steamheating roller 7 is arranged in the reservoir and its ends are connectedto the nipples as at 8. Each nipple is divided into a flow duct orpassage 9 and a return duct 10, the said re turn duct being connectedtogether by a passage 11 in the casting or base l. Each nipple also hasa centrally arranged oil passage 12. Said oil passage communicatesthrough openings 13 with the reservoir. The base 4 has a channel 14 inits upper side which extends longitudinally thereof and in this channelare a pair of slides 15 to cut off or open the openings 13 and hencecontrol the supply of lubricant from the reservoir. The steam jacketpipes lead downwardly from the nipples 5 and are each formed with a flowpassage 16 and a return passage 17. Each steam jacket also has a centralOll passage 18. The passages of these pipes correspond with the similarpassages of the members.

A pair of lubricating boxes 19 which are substantially triangular inshape are arranged on the necks or trunnions of the rolls 2 and bearagainst one side of the vertical opening 20 in the standard 1 and inwhich the necks of the rolls-are mounted. The

bearing blocks for the necks of the rolls are.

is provided at its lower side with lubricant discharge openings 29 andwith a slide 30, to open or close said openings. Each box 19 is open onits under side next the neck of the roll in connection with which itoperates and is provided in said open side with rollers 31 which bear onthe neck of the roll. Each lubricating box is also provided with a watercirculating pipe 32 which is preferably covered by asbestos or othersuitable material as at 33 the water circulating pipe serving to keepthe lubricant cool in the lubricating box. A water feed pipe 34 isconnected to the circulating pipe of the lower lubricating box. Awaterpipe 35 connects the circulating pipes in the lubricating boxes and awater pipe 36 leads from the circulating pipe in the upper lubricatingbox. It is desirable to keep the lubricant cool in the lubricating boxto prevent an excessive application of lubricant to the neck of the rolland also to minimize the heating of the neck roll and lubricating boXcaused by friction.

Each steam acket pipe 6 includes a member 37 which is connected to oneof the lubricating boxes by an elbow 38, the said members 37 having flowand return passages 16* 17 which correspond with those of the steamjacket pipes and being also provided with oil feed passages 18 whichcorrespond with those of the steam jacket pipes. Each steam jacket pipealso has a telescoping joint 39 as shown in detail in Figs. 7-8 Whichrender said pipeslongitudinally ex-j. tensible and adapt the lubricatingboxes to move vertically to a slight extent and yet remain connected tothe reservoir and steam coil to receive lubricant from the pipes forapplication to the necks ofthe rolls andpermit the circulation of steamthrough said flow and return ducts of said pipes, said lubricating boxesand the steam coil 7 and thereby keep the lubricant or grease Warm inthe reservoir and hence keeps the lubricant fluid so that it passesthrough the pipes to the lubricating boxes and from the latter to thenecks of the rolls. A steam-feed pipe 40 is attached to the. flowpassage 16 of the pipe member'37 of the lower lubricating box and asteam exhaust pipe 41 is attached to the return passage 17? of saidmember. Hence the steam is caused to pass first through the steamcirculating pipe in the lower lubricating box from thence up through theflow passage 6 of its pipe 6 to thesteam coil 7 from the latter throughthe flow passage 16 of the other pipe 6 to the upper lubricating box,then through the latter and therefrom back 'throughthe return passage 17of the pipe 6 of said, upper lubricating box, the passage 11 of the base4 and from, said passage through'the return passage 17 of the pipe 6 ofthe lojver Copies of this patent inay be obtained for lubricating boxand from the member 37' of said pipe out through the exhaust pipe 41 asWill be understood.

Having thus described my invention, I claim 1. In combination Withjournals, a lubricating reservoir, lubricating boxes arranged on thejournals and pipes connecting said boxes to the reservoirs to supplythem With lubricant therefrom, a steam heating coil in said reservoirvand steam jacket pipes arranged around the lubricant feed pipes andcommunicating With the heating coil.

7 2. In combination with journals, alubricating reservoir, lubricatingboxes arranged on the journals and pipes connecting said boxes to thereservoir to supply'them With lubricant therefrom, a steam heating coilin said reservoir and steam jacket pipes arranged around the lubricantfeed pipes and communicating With the heating coil'and' Watercirculating meanslocated in said lubricating boxes and absorbentlubricant applying pads also arranged inpsaid lubricating boxes. I p

In testimony; whereof I afiix my signature in presence of tWo Witnesses.i

V Witnesses-i im Q QN, GEO. FUMISH.

five cents each, by addressing the Commissioner of Patents. Washington,D. C.

WILLIAM nrr rnnnenn; I

